Swim Serpentine 20262026 Event Sold Out. Register your interest for 2027. Whether you are a first time open water swimmer or seasoned pro, Swim Serpentine is a great challenge to make a splash with your fundraising for Brain Tumour Research. Choose from four distances: half a mile, one mile, two miles or six miles and complete your challenge against the stunning backdrop of the Serpentine in Londons Hyde Park. Dive in to this memorable challenge, make memories to last a

A pink polo shirt adorned with the Brain Tumour Research logo - great for your fundraising event

the fundraising target for the Half Marathon is £300 and for the Mini Marathon the fundraising target is £50

Conquer 26

Hosted once again by Scottish broadcasters and journalists

all while helping us to get closer to a cure

Join our team at one of the UK most unforgettable marathon experiences

A Senior Research Fellow running a Brain Tumour Research lab will develop their own world-class research as well as co-ordinate the output of PhD Students

green spaces

Will you be among those walking for Brain Tumour Research

there’s an ultra challenge for everyone

Ergonomic shape

Put your pedal power to the test and take to the saddle for this iconic 55-mile ride